Adding second instance of Firefox with Marionette (change port)
I'm having great difficulties creating two instances of firefox via marionette. Having one instance works fine: Starting up Firefox with marionette enabled: firefox.exe -marionette Controlling it with python: from marionette import Marionette client = Marionette('localhost', port=2828) client.start_session() client.execute_script("alert('o hai there!');") Now I'd like to add a second client alongside the current one, a quick search resulted in the --address command: firefox.exe -marionette --address=localhost:2829 Trying to control it via python: from marionette import Marionette client =